Datasets: We conduct experiments on FaceForensics++(FF++) [1]} and Celeb-DF v2 [2]}. FF+ is a large scale video dataset consisting of 1,000 original videos with real faces that have been manipulated by four deepfake methods: Deepfakes(DF)  [3]}, Face2Face (F2F)  [4]}, FaceSwap (FS)  [5]}, and NeuralTextures (NT)  [6]}. Celeb-DF v2 includes 590 original videos collected from YouTube and 5639 deepfake videos generated by an improved deepfake synthesis algorithm, which brings better visual quality.
